uniphier: support Socionext UniPhier platform
Initial commit for Socionext UniPhier SoC support. BL1, Bl2, and
BL31 are supported. Refer to docs/plat/socionext-uniphier.md for
more detais.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/plat/socionext/uniphier/uniphier_topology.c b/plat/socionext/uniphier/uniphier_topology.c
new file mode 100644
index 0000000..1f96f58
--- /dev/null
+++ b/plat/socionext/uniphier/uniphier_topology.c
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <platform.h>
+
+#include "uniphier.h"
+
+static unsigned char uniphier_power_domain_tree_desc[UNIPHIER_CLUSTER_COUNT + 1];
+
+const unsigned char *plat_get_power_domain_tree_desc(void)
+{
+ int i;
+
+ uniphier_power_domain_tree_desc[0] = UNIPHIER_CLUSTER_COUNT;
+
+ for (i = 0; i < UNIPHIER_CLUSTER_COUNT; i++)
+ uniphier_power_domain_tree_desc[i + 1] =
+ UNIPHIER_MAX_CPUS_PER_CLUSTER;
+
+ return uniphier_power_domain_tree_desc;
+}
+
+int plat_core_pos_by_mpidr(u_register_t mpidr)
+{
+ unsigned int cluster_id, cpu_id;
+
+ cluster_id = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK;
+ if (cluster_id >= UNIPHIER_CLUSTER_COUNT)
+ return -1;
+
+ cpu_id = (mpidr >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK;
+ if (cpu_id >= UNIPHIER_MAX_CPUS_PER_CLUSTER)
+ return -1;
+
+ return uniphier_calc_core_pos(mpidr);
+}